William Leonard Berlin

Current Employers

Mainstay Capital Management, Llc

10775 South Saginaw Bldg C, Suite F, Grand Blanc, MI 48439 • United States

Current Registrations

Authority	Category	Status	Date
MI	RA	APPROVED	2026-03-03

MI RA
APPROVED

Since 2026-03-03

Branch Locations

10775 South Saginaw Bldg C, Suite F, Grand Blanc, MI 48439 • United States

Disclosures

2 disclosure categories reported Yes on this SEC record. Read each Yes below, then review the firm’s Form ADV Item 11 guide for how disclosure questions work.

Regulatory action No
Criminal No
Bankruptcy No
Civil judicial No
Bond No
Judgment / lien Yes
Investigation No
Customer complaint Yes
Termination No

Employment History

Organization	City	State	From	To
Tdameritrade Inc	Birmingham	MI	03/2014	01/2021
Mainstay Capital Management	Grand Blanc	MI	01/2021	Present

03/2014 → 01/2021

Tdameritrade Inc

Birmingham, MI
01/2021 → Present

Mainstay Capital Management

Grand Blanc, MI

Previous Registrations

2014-03-11 → 2021-01-11

Td Ameritrade, Inc.

Birmingham, MI

Omaha, NE

Grand Blanc, MI

Grand Rapids, MI
2014-03-11 → 2020-12-31

Td Ameritrade Investment Management, Llc

Birmingham, MI

Grand Blanc, MI
2011-12-06 → 2014-03-26

Greystone Financial Group, Inc.

San Rafael, CA
2010-10-19 → 2011-11-14

J2 Capital Management, Inc.

Troy, MI
2006-04-12 → 2010-08-31

Td Ameritrade, Inc.

Birmingham, MI
2010-01-04 → 2010-08-31

Td Ameritrade Investment Management, Llc

Birmingham, MI
2004-09-22 → 2005-06-28

Merrill Lynch, Pierce, Fenner & Smith Incorporated

Detroit, MI

Exams

Code	Exam	Date
S63	Uniform Securities Agent State Law Examination	2014-05-09
S65	Uniform Investment Adviser Law Examination	2004-09-21

S63 Uniform Securities Agent State Law Examination

2014-05-09
S65 Uniform Investment Adviser Law Examination

2004-09-21